Hydrophobic Polymer-Coated Particles for Binder Compatibility
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Solution Overview
Problem
Existing composite materials face challenges in forming a strong bond between hydrophilic filler particles and hydrophobic binders, leading to weak points under stress and complicating recycling, while current surface treatments like silanization are costly and inefficient.
Innovation Solution
Particles are coated with a hydrophobic surface coating composed of monomers of type A, such as OR1, NR1, NR1R2, and CN, applied using an energy-efficient process involving mixing, drying, and crosslinking to ensure a stable bond with the binder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If silanization is used to hydrophobize particle surfaces, then bonding between particles and binder is improved, but production cost and energy consumption increase
Solution Approach 1:
The patent replaces expensive and energy-intensive silanization processes with a cost-effective polymer coating system. The coating composition containing monomers of type A is applied to particles and cured to form a hydrophobic surface layer, eliminating the need for costly silane chemicals and complex multi-step processing while achieving equivalent or superior bonding performance.
Solution Approach 2:
The patent changes the chemical composition parameters of the surface coating from inorganic silane-based systems to organic polymer-based systems. By using coating compositions with specific monomer structures (type A monomers with R groups of OR1, NR1, NR1R2, or CN), the surface hydrophobicity is achieved through polymerization rather than silanization, fundamentally altering the chemical mechanism and process parameters.
2Strength
If silanization is used to hydrophobize particle surfaces, then bonding between particles and binder is improved, but production cost increases
Solution Approach 1:
The patent replaces expensive and energy-intensive silanization processes with a cost-effective polymer coating system. The coating composition containing monomers of type A is applied to particles and cured to form a hydrophobic surface layer, eliminating the need for costly silane chemicals and complex multi-step processing while achieving equivalent or superior bonding performance.
Solution Approach 2:
The patent changes the chemical composition parameters of the surface coating from inorganic silane-based systems to organic polymer-based systems. By using coating compositions with specific monomer structures (type A monomers with R groups of OR1, NR1, NR1R2, or CN), the surface hydrophobicity is achieved through polymerization rather than silanization, fundamentally altering the chemical mechanism and process parameters.
3Adaptability or versatility
If hydrophilic filler particles are used, then material availability is improved, but bonding with hydrophobic binders deteriorates
Solution Approach 1:
The patent introduces a polymer coating as an intermediary layer between the hydrophilic filler particle surface and the hydrophobic binder. This coating composition, containing monomers of type A, acts as a transition layer that provides hydrophobicity to the particle surface, enabling compatible interaction with hydrophobic binders while maintaining the availability of various filler particle types.
Solution Approach 2:
The patent changes the surface property parameters of the filler particles by applying a polymer coating. The coating transforms the surface chemistry from hydrophilic to hydrophobic, altering the surface energy and chemical composition to match the binder characteristics, thereby improving interfacial compatibility and bonding strength.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The hydrophobic coating enables a strong bond with the binder, reducing stress points and facilitating recycling, while allowing for cost-effective and sustainable production of composite materials with predictable color and optical effects.
Implementation Method 1
a coating composition based on monomers of type A, wherein the monomers of type A are a substance of the structure... R is selected from a group comprising OR1, NR1, NR1R2 and CN
Implementation Method 2
particles with an at least partially hydrophobic surface coating... the monomers of type A are a substance of the structure... R is selected from a group comprising OR1, NR1, NR1R2 and CN
Data Source
Figure 1a~1b
Figure 1c
AI summary
The present invention relates to particles with an at least partially hydrophobic surface coating, comprising carrier particles which are at least partially surface-coated with a coating composition based on monomers of type A, wherein the monomers of type A comprise a substance of the structure, wherein R is selected from a group comprising OR1, NR1, NR1R2 and CN, wherein X is H or a hydrocarbon chain, wherein R1 and R2 are defined in claim 3. Furthermore, the invention relates to a process for producing such particles and to a molded part comprising such particles.